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I've these two waves

y1=3sin(kx-wt)

y2=4cos(kx+wt)

I need to find the resultant wave (y1+y2)

I got that answer:

y= 7 cos(wt+45) sin(kx+45)

is that right?? plz if not give me a hint

==================My efforts=============================

I added the amplidtude mathematically

then using trigonometric rules i added the two "sin" and "cos" functions

but i still need to know if my answer is true

bYYyYyyyYYyYYyYE

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# Juct check it for me

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